Well, actually yes they did contribute to the attack on the Republic. See[1].
[1] : https://www.bbc.co.uk/news/articles/c20l1v0ldqzo
Your link actually says they were contributing to the defense not the attack
> The US-Israeli strikes were launched after negotiations to limit Iran's nuclear programme ended without a deal. The UK did not participate.
Your link actually says they were contributing to the defense not the attack
> The US-Israeli strikes were launched after negotiations to limit Iran's nuclear programme ended without a deal. The UK did not participate.